Domain Summary
regular expression tester with syntax highlighting, explanation, cheat sheet for php/pcre, python, go, javascript, java, c#/.net, rust.
| Global rank: | #69602 |
|---|---|
| Daily visitors: | 38.63K |
| Monthly Visits: | 1,158,822 |
| Pageviews per user: | 1.59 |
| Registrar Abuse Contact Email: | [email protected] |
| Registrant Phone: | +354.4212434 |
| Rating | |
|---|---|
| TLD: | com |
| IP Address: | 78.47.220.195 |
| Organization: | Hetzner Online GmbH |
| Category: | Computers Electronics and Technology > Computers Electronics and Technology |
Click here to check amazing regex101com content for United States. Otherwise, check out these important facts you probably never knew about regex101.com
regular expression tester with syntax highlighting, explanation, cheat sheet for php/pcre, python, go, javascript, java, c#/.net, rust.
regex101.com is probably legit as the trust score is reasonable. Our algorithm rated regex101.com a 81. Although our rating of regex101.com is medium to low risk, we encourage you to always vote as the evaluation of the site is done automatically.
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1Explore the top alternatives and rivals of regex101.com in June 2025, and assess their data relating to website traffic, SEO, Web Server Information, and Whois. Refer to the list below for the best competitors of regex101.com, and simply click on each one to delve into their specific details.
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Global Rank: 70502
Computers Electronics and Technology > Computers Electronics and Technology
Monthly visits: 627678https://regex101.com/r/Tju8wh/1
Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.
https://blog.betrybe.com/tecnologia/regex-101/
O Regex 101 é uma ferramenta hospedada online e pode ser acessada pelo endereço regex101.com em qualquer navegador. Esse recurso é utilizado por um grande número de pessoas desenvolvedoras para realizar testes de expressões regulares. O que é o Regex e qual a sua importância para o desenvolvimento de aplicações?
https://regex101.com/account/mine
regex101: Account Page. Account Page. You do not have to create an account, just select an existing account from one of the supported service providers. Only the bare minimum information is retrieved and saved in order to identify your account. By signing in, all your expressions will be automatically saved to your account, where you have ...
https://softwarerecs.stackexchange.com/questions/71601/regex-desktop-tool-for-offline-use-cross-platform
There are a plethora of SO questions a decade old describing cross platform desktop Regex tools. It seems the most popular options were: Kodos (no commits in the past decade, runs off deprecated Qt3). Regexr (desktop version ran on Adobe Air, no longer available). RegExBuddy ($40, maybe it's the only option). With Perl 5.10 use re 'debug';. …
https://regex101.com/quiz/
Welcome to the regex101 regex quiz! This is an interactive learning tool you can use to improve your understanding of regular expressions, and their different applications. The …
https://regex101.com/library
Browse and use over 20,000 regular expressions for various purposes, such as email validation, URL extraction, color coding, etc. regex101 is a website that lets you test and …
https://www.reddit.com/r/programming/comments/55pdm7/regex101com_after_spending_more_time_than_i_care/
I've been using regexr, but is there anything in your site that's better (other than it's made by a redditor).I'll give it a try, but the first thing I noticed, like u/Naihonn said, scrolling is broken on the main page. I hope you fix it because other than that, this is a quality site. P.S.
DNS entries, such as A, NS, MX, and TXT records, are crucial for the functioning of the Internet. The A record maps a domain name to an IPv4 address, while the NS record specifies authoritative name servers for a domain. The MX record identifies the mail server responsible for receiving email messages for a domain. Additionally, the TXT record allows for the association of any text information with a domain name. These records play a vital role in ensuring proper communication and connectivity across the internet.
| Host | Class | TTL | Type | Data | |
| regex101.com | IN | 300 | A | ip: 78.47.220.195 | |
| regex101.com | IN | 1800 | NS | target: dns1.registrar-servers.com | |
| regex101.com | IN | 1800 | NS | target: dns2.registrar-servers.com | |
| regex101.com | IN | 3601 | SOA | mname: dns1.registrar-servers.comrname: hostmaster.registrar-servers.comserial: 1659192161refresh: 43200retry: 3600expire: 604800minimum-ttl: 3601 | |
| regex101.com | IN | 1800 | MX | target: eforward1.registrar-servers.compri: 10 | |
| regex101.com | IN | 1800 | MX | target: eforward5.registrar-servers.compri: 20 | |
| regex101.com | IN | 1800 | MX | target: eforward3.registrar-servers.compri: 10 | |
| regex101.com | IN | 1800 | MX | target: eforward2.registrar-servers.compri: 10 | |
| regex101.com | IN | 1800 | MX | target: eforward4.registrar-servers.compri: 15 | |
| regex101.com | IN | 300 | TXT | txt: v=spf1 include:spf.efwd.registrar-servers.com -all | |
| regex101.com | IN | 300 | TXT | txt: google-site-verification=e3kdGikhQf2oBB_SquqmSxSnG-lMK1_3i2dGXNBZprA | |
| regex101.com | IN | 300 | AAAA |
According to global rankings, regex101.com holds the position of #69602. It attracts an approximate daily audience of 38.63K visitors, leading to a total of 38740 pageviews. On a monthly basis, the website garners around 1158.82K visitors.
Daily Visitors38.63K
Monthly Visits1158.82K
Pages per Visit1.59
Visit Duration0:01:55
Bounce Rate79.94% Daily Unique Visitors: | 38627 |
 Monthly Visits: | 1158822 |
 Pages per Visit: | 1.59 |
 Daily Pageviews: | 38740 |
 Avg. visit duration: | 0:01:55 |
 Bounce rate: | 79.94% |
 Monthly Visits (SEMrush): | 1161278 |
| Sources | Traffic Share |
 Social: | 0.73% |
 Paid Referrals: | 1.93% |
 Mail: | 0.02% |
 Search: | 22.16% |
 Direct: | 75.14% |
| Country | Traffic Share |
 United States: | 12.26% |
 Russia: | 9.27% |
 Germany: | 6.06% |
 France: | 5.60% |
 China: | 5.59% |
An SSL certificate is a digital certificate that ensures a secure encrypted connection between a web server and a user's browser. It provides authentication and encryption to keep data private and protected during transmission. regex101.com supports HTTPS, demonstrating their commitment to providing a secure browsing experience for users.
HTTP headers are additional segments of data exchanged between a client (e.g. a web browser) and a server during an HTTP request or response. They serve to provide instructions, metadata, or control parameters for the interaction between the client and server.
regex101.com is likely hosted in various data centers located across different regions worldwide. The current data center mentioned is just one of many where the website may be hosted.
WHOIS protocol used to get domain/IP info. Common for reg details, ownership of a domain/IP. Check regex101.com for reg/admin contact info, owner, org, email, phone, creation, and expiration dates.
| Domain Updated Date: | 2023-07-16 |
| Domain Created Date: | 2012-08-15 |
| Domain Expiry Date: | 2024-08-15 |
| Domain Name: | regex101.com |
| Registrar WHOIS Server: | whois.namecheap.com |
| Registrar Abuse Contact Email: | [email protected] |
| Registrar Abuse Contact Phone: | +1.9854014545 |
| Domain Registrar: | NAMECHEAP INC |
| Domain Owner: | Privacy service provided by Withheld for Privacy ehf |
Domain name: regex101.com
Registry Domain ID: 1739018738_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.namecheap.com
Registrar URL: http
Updated Date: 2023-07-16T07
Creation Date: 2012-08-15T14
Registrar Registration Expiration Date: 2024-08-15T14
Registrar: NAMECHEAP INC
Registrar IANA ID: 1068
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.9854014545
Reseller: NAMECHEAP INC
Registry Registrant ID:
Registrant Organization: Privacy service provided by Withheld for Privacy ehf
Registrant Street: Kalkofnsvegur 2
Registrant City: Reykjavik
Registrant State/Province: Capital Region
Registrant Postal Code: 101
Registrant Country: IS
Registrant Phone: +354.4212434
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: [email protected]
Registry Admin ID:
Admin Organization: Privacy service provided by Withheld for Privacy ehf
Admin Street: Kalkofnsvegur 2
Admin City: Reykjavik
Admin State/Province: Capital Region
Admin Postal Code: 101
Admin Country: IS
Admin Phone: +354.4212434
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email: [email protected]
Registry Tech ID:
Tech Organization: Privacy service provided by Withheld for Privacy ehf
Tech Street: Kalkofnsvegur 2
Tech City: Reykjavik
Tech State/Province: Capital Region
Tech Postal Code: 101
Tech Country: IS
Tech Phone: +354.4212434
Tech Phone Ext:
Tech Fax:
Tech Fax Ext:
Tech Email: [email protected]
Name Server: dns2.registrar-servers.com
URL of the ICANN WHOIS Data Problem Reporting System: http
For more information on Whois status codes, please visit https: //icann.org/epp
SEO analysis involves examining the performance of a website, including titles, descriptions, keywords, and website speed. It also includes identifying popular keywords and researching competitor websites to understand their strategies. The analysis aims to optimize the website's visibility and improve its ranking on search engines.
Length: 38 characters
Title tags are usually best kept short, within 50-70 characters. It's important to note that search engines will typically read the entire title tag even if it exceeds 70 characters, but there is a chance they may cut it off or disregard it.
Length: 135 characters
When crafting website descriptions, keep in mind that search engines only show the first 150-160 characters in search results. To ensure your entire description is visible, aim for a length of 25-160 characters. If your description is too long, it may get cut off. Conversely, if it's too short, search engines may add text from elsewhere on your page. Additionally, search engines may modify the description you provide to better match the user's search intent. It's best to strike a balance between brevity and relevance for optimal visibility.
In the realm of search engine optimization, the meta keywords tag has become a relic of the past due to its potential for misuse, ultimately leading major search engines to disregard it in their ranking algorithms.
| Term | Count | Density |
| character | 11 | 7.64% |
| regex | 8 | 5.56% |
| match | 6 | 4.17% |
| a-z | 6 | 4.17% |
| string | 3 | 2.08% |
| range | 3 | 2.08% |
| tokens | 3 | 2.08% |
| information | 2 | 1.39% |
| flavor | 2 | 1.39% |
| abc | 2 | 1.39% |
| php | 2 | 1.39% |
| substitution | 2 | 1.39% |
| explanation | 2 | 1.39% |
| automatically | 2 | 1.39% |
| sponsors | 2 | 1.39% |
| reference | 2 | 1.39% |
| save | 2 | 1.39% |
| single | 2 | 1.39% |
| pcre | 2 | 1.39% |
| non-word | 2 | 1.39% |
| javascript | 2 | 1.39% |
| enclosed | 2 | 1.39% |
| regular | 2 | 1.39% |
| word | 2 | 1.39% |
| boundary | 2 | 1.39% |
| test | 2 | 1.39% |
| community | 2 | 1.39% |
A crucial factor in search engine optimization is keyword density, which refers to the proportion of a particular keyword present in the text of a webpage. In order to achieve high rankings on search engine results pages, it is essential to maintain the appropriate keyword density for your primary keyword.
| <h> Regular Expressions 101 </h> |
| <h2> Quick Reference </h2> |
| <h2> Regular Expression No Match </h2> |
| <h2> Test String </h2> |
| <h2> Match Information </h2> |
| <h2> Tools </h2> |
| <h2> Save Share </h2> |
| <h2> Flavor </h2> |
| <h2> Function </h2> |
| <h2> Explanation </h2> |
In SEO, the primary focus is placed on keywords within the content. The title of the page holds the highest importance, followed by heading tags such as h1, h2, and h3. The h1 heading should be the largest on the page, while the h2 heading should be slightly smaller, and the h3 heading even smaller. This hierarchical structure is crucial for optimizing search engine rankings.
What is the issue about?The tag does not have an ALT attribute defined. As a general rule, search engines do not interpret the content of image files. The text provided in the
attribute enables the site owner to provide relevant information to the search engine and to the end user. Alt text is helpful to end users if they have images disabled or if the image does not properly load. In addition, the Alt text is utilized by screen readers. Make sure that your Alt text is descriptive and accurately reflects what the image represents and supports the content on the page.
How to fix?Use the <img alt> attribute to write descriptive content for the image: <img source='pic.gif' alt='Accurate and descriptive keyword text that represents the image.' />.
Website speed is a measurement of how fast the content on your page loads. Website speed is one of many factors involved in the discipline of search engine optimization (SEO), but it is not the only one. In a recent study, the average load time for a web page was 3.21s.
| Term | Search Volume | Traffic | Traffic (%) |
| regex101com | 140 | 0 | 0% |
CoHosted refers to a situation where multiple domain names (websites) are using the same IP address to point to their respective web servers. They could be owned by different individuals or organizations and may serve entirely different purposes.
Total reviews: 2 Average score: 5 stars
The total score is based on reviews found on the following sitesScamadviser: 5/5 stars, 2 reviews
Total reviews: 2 Average score: 5 stars
The total score is based on reviews found on the following sitesScamadviser: 5/5 stars, 2 reviews
